LTC3372MPUH#TR - 60V Low IQ Buck Controller + 4-Channel 8A Configurable Buck DC/DCs | Analog Devices
MPN: LTC3372MPUH#TR ✓ NakahandaLTC3372MPUH#TR Ulas
A multioutput power supply IC is a single integrated circuit that provides multiple regulated voltage rails from one or more input sources. It typically combines a controller for an external high-voltage stage with integrated low-voltage converters, enabling efficient power distribution in complex systems. In the hierarchy of power management, it sits above individual DC-DC converters, offering a complete power solution that reduces component count and board space.
Key features include a wide input voltage range of 4.5V to 60V for the HV controller, low quiescent current for battery-powered applications, and four configurable LV buck converters with up to 8A total output current. The device supports multiple output configurations, allowing designers to tailor the power architecture to specific needs. Its high efficiency and low IQ make it ideal for always-on systems.
Technically, the LTC3372 employs a current-mode control architecture for fast transient response and stable operation. The HV controller drives external N-channel MOSFETs, enabling high-power step-down conversion from elevated input voltages. The LV converters are fully integrated with internal power switches, simplifying design and reducing external component count. The device includes comprehensive protection features such as overcurrent and overtemperature shutdown.
Typical applications include industrial power supplies, automotive infotainment systems, telecom equipment, and distributed power architectures. Its ability to handle high input voltages and provide multiple regulated outputs makes it suitable for systems requiring multiple supply rails from a single source.
When designing with the LTC3372, careful attention must be paid to PCB layout for the high-current paths and the HV controller's gate drive signals. Proper decoupling and thermal management are essential to ensure reliable operation at maximum load.
Mga alternatibo na pwedeng ilagay na LTC3372MPUH#TR — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok LTC3372MPUH#TR (parehas na form factor at footprint) — pagkakaiba sa Synchronous Rectification, Control Architecture, Package, RoHS Status, Input Voltage Range (HV Controller).
LTC3372EUH#TR
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
LTC3372IUH#TR
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
LTC3372MPUH#PBF
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →LTC3372EUH#PBF
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →LTC3372IUH#PBF
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →LTC3372MPUH#TR Mga Pinakamataas na Rating at Electrical Characteristics
| Input Voltage Range (HV Controller) | 4.5 V to 60 V |
| Number of LV Buck Converters | 4 |
| Total Output Current (LV) | 8 A |
| Output Current per Channel | Configurable up to 8 A |
| Temperature ng Junction na Operasyon | -40°C to 125°C |
| Packhaging | 44-pin QFN |
| Uri ng Pagpapasok | Surface Mount |
| Control Architecture | Current Mode |
| External FETs | All N-Channel |
| Protection Features | Overcurrent, Overtemperature |
| Tindminan RoHS | Compliant |
| REACH Status | Compliant |
Pin Configuration ng LTC3372MPUH#TR
| Pin 1 | HVIN — High-voltage input for controller |
| Pin 2 | HVGATE — Gate drive for external N-channel FET |
| Pin 3 | HVFB — Feedback for HV controller |
| Pin 4 | LVIN1 — Input for LV buck converter 1 |
| Pin 5 | LVSW1 — Switch node for LV buck 1 |
| Pin 6 | LVFB1 — Feedback for LV buck 1 |
| Pin 7 | LVIN2 — Input for LV buck converter 2 |
| Pin 8 | LVSW2 — Switch node for LV buck 2 |
| Pin 9 | LVFB2 — Feedback for LV buck 2 |
| Pin 10 | LVIN3 — Input for LV buck converter 3 |
| Pin 11 | LVSW3 — Switch node for LV buck 3 |
| Pin 12 | LVFB3 — Feedback for LV buck 3 |
| Pin 13 | LVIN4 — Input for LV buck converter 4 |
| Pin 14 | LVSW4 — Switch node for LV buck 4 |
| Pin 15 | LVFB4 — Feedback for LV buck 4 |
| Pin 16 | GND — Ground |
| Pin 17 | EN — Enable pin |
| Pin 18 | MODE — Mode selection |
| Pin 19 | SYNC — External clock sync |
| Pin 20 | VCC — Internal supply |
Tipikal na mga Gamit
LTC3372MPUH#TR ay nararapat para sa 6 aplikasyons: Industrial Power Supplies, Automotive Infotainment, Telecom Equipment, Distributed Power Architectures, Battery-Powered Systems, FPGA Power Solutions.
Industrial Power Supplies
The LTC3372MPUH#TR's 60V input capability and multiple outputs make it ideal for industrial power supplies that need to generate multiple rails from a high-voltage bus. Its high efficiency reduces heat dissipation, and the configurable outputs allow flexible voltage/current combinations. The wide temperature range ensures reliable operation in factory environments.
Inirekomenda
Automotive Infotainment
In automotive infotainment systems, the LTC3372MPUH#TR provides multiple regulated rails for processors, displays, and audio from a 12V battery. Its wide input range handles load dumps and cranking conditions, while the low quiescent current supports always-on features. The -40°C to 125°C temperature range meets automotive requirements.
Inirekomenda
Telecom Equipment
Telecom equipment often operates from 48V backplanes, and the LTC3372MPUH#TR's 60V input directly handles this. It generates multiple low-voltage rails for FPGAs, ASICs, and line cards. The high efficiency reduces cooling requirements, and the configurable outputs adapt to different board designs.
Inirekomenda
Distributed Power Architectures
The LTC3372MPUH#TR is well-suited for distributed power architectures where a high-voltage bus is stepped down to multiple point-of-load rails. Its HV controller drives external FETs for high-power conversion, while the integrated LV converters handle lower-power rails. This reduces component count and improves efficiency.
Inirekomenda
Battery-Powered Systems
With its low quiescent current, the LTC3372MPUH#TR is suitable for battery-powered systems that require multiple rails, such as portable instruments. The wide input range accommodates battery voltage variations, and the high efficiency extends battery life. The configurable outputs allow optimization for different load profiles.
Inirekomenda
FPGA Power Solutions
FPGAs require multiple voltage rails (core, I/O, auxiliary) with precise sequencing. The LTC3372MPUH#TR provides up to four configurable outputs that can be sequenced to meet FPGA power-up requirements. Its high efficiency and small footprint make it ideal for dense FPGA boards.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for LTC3372MPUH#TR — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | LTC3372EUH#TR | LTC3372IUH#TR | LTC3372MPUH#PBF |
|---|---|---|---|---|
| Package | 44-pin QFN | 44-pin QFN | 44-pin QFN | 44-pin QFN |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Temperature Grade | -40°C to 125°C | 0°C to 85°C | -40°C to 85°C | -40°C to 125°C |
| Lead-Free | Yes (RoHS) | Yes | Yes | Yes |
| Input Voltage Range | 4.5V to 60V | 4.5V to 60V | 4.5V to 60V | 4.5V to 60V |
| Number of Outputs | 1 HV + 4 LV | 1 HV + 4 LV | 1 HV + 4 LV | 1 HV + 4 LV |
| Total Output Current | 8A (LV) | 8A | 8A | 8A |
| Quiescent Current | Low IQ | Low IQ | Low IQ | Low IQ |
Pangunahing mga Pagkakaiba
- Extended temperature range (-40°C to 125°C) (kumpara saLTC3372EUH#TR)
- High-voltage controller with 60V input (kumpara saLTC3372EUH#TR)
- Low quiescent current for battery operation (kumpara saLTC3372EUH#TR)
Talaan ng Disenyo
For the high-current LV buck converters, use wide copper traces and multiple vias for the switch nodes and ground. Place input and output capacitors close to the IC pins to minimize parasitic inductance. The HV controller's gate drive traces should be short and direct to the external FETs to reduce ringing.
The LTC3372MPUH#TR can dissipate significant power when delivering 8A from the LV converters. Ensure adequate thermal vias under the exposed pad and a sufficient copper area for heat spreading. For high ambient temperatures, consider forced airflow or a heatsink.
Do not exceed the absolute maximum input voltage of 60V on the HV pin. Ensure the external FETs are rated for the maximum input voltage and have appropriate gate drive. The feedback resistors for each output must be placed close to the IC to avoid noise pickup.
Impormasyon ng Pagsunod sa Kautusan
RoHS and REACH compliant per Analog Devices product page. Not AEC-Q100 qualified; for automotive, verify with manufacturer.
